After seeing a really neat commercial Pen Plotter on Youtube, I decided the time has come to build my own Arduino Pen Plotter using Nema17 Stepper Motors and readily available 3D Printer spare parts.
Continue reading Scrappy Arduino Pen Plotter with Nema17 Steppers
In the previous post, I wrote about how I decided to build an Arduino Delta Robot. In this post, I will show you how I added some simple Computer Vision to the project.
Continue reading Adding Computer Vision to the Arduino Delta Robot
This is a post about an old project I finished years ago. Maybe something good will come from looking back on what kind of decisions I made while working this monstrosity of an Arduino Delta Robot.
This entry is about a small Raspberry Pi robot arm I made more then a year ago. I used Dynamixel AX-12A servos. They are quite expensive. But the rule “I payed more so it ought to be better” applies; What you get are very easily configurable strong smart servos. The “smart” just meaning that you can control them via serial bus.
Continue reading Raspberry Pi Robot Arm with simple Computer Vision
This entry is about the quest to get a machine to juggle a ping pong ball.
I started thinking about a ping pong ball juggler 2 years ago. And it was around that time that I built the first one of them. it uses LED – Photo transistor pairs to “see” when and approximately where the ball comes down. I used 4 micro servos to move a wooden plate. It’s the machine in the first YouTube video.
